In 1928 the company was partially nationalized and renamed to Państwowe Zakłady Inżynieryjne (State Engineering Works, PZInż), but it continued to use the old name of CWS as the brand name for the motorcycles until the outbreak of the Invasion of Poland.
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Among the most notable designs were the CWS T-1 (the first Polish-made car to be serially built), T-2 and T-8 limousines, as well as the extremely successful Sokół motorcycle series.
It was created by the Polish minister of industry Eugeniusz Kwiatkowski on March 19, 1928, out of several previously existing state-owned factories and scientific institutes, among them the Centralne Warsztaty Samochodowe and the Ursus factory.
After the war he remained one of the engineers working for the Polish arms industry, most notably the Centralne Warsztaty Samochodowe company.